baber/WOPTO huggingface dataset:
Patent GB-115872-A (GB)
Title: Improvements in and connected with the Separation and Settlement of Solids and Semi-solids from Sewage Liquids and analogous Liquids.
IPC: E03F5/16
Filed: 1917-05-17
Abstract: 115,872. Clifford, W., and Jones & Attwood. May 17, 1917. Plant.-Relates to the separation and settlement of suspended matters contained in liquids dealt with at sewage and like disposal works, and consists in providing at or near the top of the settlement tank a bucket or like vessel 3 by which the liquid from an inlet 2 is directed in an upward direction into a relatively large body of liquid within an open-bottomed guard chamber or wall 4, which directs the slow-moving liquid downwards into the body of the liquid in the tank. In a modification, the vessel 3 is replaced by a funnelshaped vessel carried at the end of the inlet pipe and adapted to direct the flow upwards.
Patent GB-667722-A (GB)
Title: An improved photographic sound recording system for making either negative or direct positive sound records
Inventor: PRATT ALBERT STANLEY
IPC: G11B7/00
Filed: 1950-03-22
Abstract: 667,722. Optical sound recording. BRITISH ACOUSTIC FILMS, Ltd. March 22, 1950. No. 7118/50. Class 40 (ii). Apparatus for producing negative or direct positive .photographic sound records of variable area type, comprises an aperture plate 5 and a slit plate 6 constructed so as to be common to both kinds of record, and a noise reduction shutter 13 operated by a bias current and so arranged that the negative or direct positive record is obtained by merely reversing the direction of the bias current. An image of an M-shaped aperture 12 in plate 5 is projected upon the slit 10 in the plate 6 by the lens 4 and modulating galvanometer mirror 3, such that during recording a band of varying width is produced by the apex of the image as seen in Fig. 2. During recording of a negative film, Fig. 3, the shutter 13 is moved downwardly, as viewed in Fig. 2, during silent periods, so that the centre part of the light slit is obscured, but during recording of a direct positive film, Fig. 4, the masks 17 are moved inwardly to the position shown in Fig. 2 to mask the ends of the slit 10, and the bias current is reversed so that during silent periods the shutter 13 moves upwardly and permits light to pass through the outer ends of auxiliary slits 11 to produce blackening of the outer edges of the film. The image of the illuminated slits 10, 11 is projected upon the film 9 by a lens 8. During recording of a direct positive the noise reduction slits 11 appear on the film slightly in advance of the modulation slit 10, and give a measure of anticipation of the succeeding waveforms and thereby avoid the tendency to clip the peaks of the. waves.
Patent GB-570582-A (GB)
Title: Improvements in the anti-shrinking treatment of animal fibres
IPC: D06M11/30
Filed: 1943-06-15
Abstract: Animal fibres, either alone or mixed with other fibres, are treated with a dilute aqueous solution or dispersion of a stannous compound, and subsequently either with an aqueous solution or dispersion of a nitrogen-chloro compound, or with a dilute aqueous solution of an alkali metal or alkaline earth metal hypochlorite or hypobromite, in order to reduce their tendency to shrink.  The process is applicable to wool materials containing cellulosic fibres such as cotton or rayon.  The term nitrogen chloro compound includes those compounds such as nitrogen trichloride, monochloramine, p-toluene sulphonchloramide and sodium - o - dichlorobenzene sulphonchloramide, in which the chlorine atom is directly attached to the nitrogen atom. Metallic salts such as magnesium sulphate, calcium chloride, calcium acetate, barium chloride, barium acetate and zinc sulphate, alone or in admixture may be added to the hypohalite solution.  In the examples: (1) Botany yarn is treated in a dispersion of stannous salts and then in an acidified solution of monochloramine.  Antichlor treatment with sulphite, bisulphite or thiosulphite is subsequently applied; (4) Botany yarn is treated in a dispersion of stannous salts and then in an acidified solution of sodium - p - toluenesulphonchloramide; (6) Botany yarn is treated in a dispersion of stannous salts and then in a bath of sodium hypochlorite; (7) Botany yarn is treated in a dispersion of stannous salts and then in a solution containing sodium hypobromite and calcium chloride.  The treatment of the invention facilitates subsequent dyeing operations. Specification 569,730 is referred to.
Patent GB-267707-A (GB)
Title: Improvements in or relating to spindle bolsters for use in spinning or other machines, or to bearings for shafting, and to means for lubrication thereof
IPC: D01H7/10
Filed: 1926-03-15
Abstract: 267,707. Offord, W. F., and Offord, L. W. March 15, 1926. Channels and reservoirs in vertical-shaft bearings.-In a spinning spindle bolster or other vertical or semi-vertical bearing, a splash chamber A formed with a free space around the spindle at the upper end of the bearing surface has a wall E interposing between the upper part of the chamber and the spindle, whereby lubricant is prevented from creeping up the spindle, and a lubricant chamber B formed around the upper part of the bearing communicates with the bearing surface by a passage C. A single lubricant chamber B may supply a series of bearings.
Patent GB-551786-A (GB)
Title: Improvements relating to the production of sheets of organic film-forming substance
IPC: B29D7/01
Filed: 1941-06-06
Abstract: 551,786. Films, sheets &c. ; moulding plastic substances. DREYFUS, H. June 6, 1941, No. 7193. [Class 2 (ii)] [Also in Group V] Thick sheets of cellulose acetate or like organic film-forming substance are obtained by applying a solution of the film-forming substance in a volatile solvent to the smooth surface of a second film-forming substance which is insoluble in the solvent of the applied solution and which forms a coating on a rigid support, evaporating the bulk of the solvent, stripping the sheet so formed and then evaporating substantially all of the remaining volatile solvent. Several layers of film-forming solution may be applied over the first layer, the bulk of the volatile solvent being removed from each layer before deposition of the next layer. Instead of cellulose acetate the thick sheets may be produced from solutions of cellulose propionate or other cellulose organic derivative or of a polyvinyl compound such as polystyrene. The coating for the rigid support may be a water-soluble polyvinyl acetate obtained by partial hydrolysis of a polyvinyl acetate of higher acetyl content, or it may be methyl cellulose, water-soluble cellulose acetate, or polyacrylic acid. The rigid support may be a flat polished glass or metal plate. The dope may contain dyes, pigments, plasticizers, or fireproofing agents. Transparent, colourless, sheet materials suitable for observation panels of aircraft, wind shields, and windows for vehicles and the like may be obtained. In an example, a layer of saponified polyvinyl acetate is formed by pouring an aqueous solution thereof on to a polished glass plate fitted with removable side-walls and evaporating the water. One or more layers of the coating solution may be cast on to the plate. On the dried coating there is deposited a layer of cellulose acetate dope and this is set by removal of most of the solvent. Further layers of dope are deposited on the first layer, most or a considerable part of the solvent being removed from each layer before casting the next layer. The composite sheet is then stripped from the casting surface and substantially the whole of the remaining volatile solvent is evaporated. The sheets may be produced by a mass production method. Thus the coating solution may be flowed continuously on to a series of glass plates moving past the flowing-point and through a drying-tunnel. The dope is flowed continuously on to a series of coated plates moving past the flowing-point. The sheets may also be formed by a dipping method. A glass plate or other support is coated on both sides with saponified polyvinyl acetate and then dipped into the dope from which the sheets are to be formed. The dope layers are dried and further layers are formed by alternate dipping and drying steps. The composite sheets are then stripped from the two polyvinyl acetate surfaces, and the remaining solvent is then evaporated. Specifications 533,788, and 542,080 are referred to.
Patent GB-526009-A (GB)
Title: An improved beach sandal
IPC: A43B3/12
Filed: 1939-03-06
Abstract: 526,009. Sandals. HENDRIKS, I. R. March 6, 1939, No. 7266. [Class 17 (ii)] The sole of a beach sandal comprises a plurality of parts 1, 2, 3 of rigid material, such as wood, hingedly connected together, the hinge between the parts 2, 3 being under the ball of the foot. The under face of some or all of the parts may be covered with rubber or other non- rigid material. A pair of cross-straps 5 at the forward end and a pair of adjustable straps 6 carrying a heel embracing strap 8 attach the sole of the sandal to the foot.
Patent GB-1219925-A (GB)
Title: Improvements in or relating to water aerators
Inventor: AGHNIDES ELIE PRODROMOS
IPC: E03C1/084
Filed: 1968-02-14
Abstract: 1,219,925. Aerating water. E. P. AGHNIDES. 14 Feb., 1968 [15 Feb., 1967], No. 7294/ 68. Heading B1C. An aerator for attachment to a water tap has upstream of the jet-forming means constituted by the perforated diaphragms 19, 20 and flow control member 23 which blocks some of the apertures 22 in the diaphragm 20. By reversing the member 23 the apertures 22 will be unblocked to adapt the aerator for use in a situation demanding reduced back pressure (e.g. in conjunction with a gas appliance ignited by rate of water flow) at the expense of aerating efficiency. The member 23 may be removable. Instead of central apertures, peripheral apertures may be blocked, Fig. 1A, in which case the lower diaphragm 19a has a domed portion 19b to produce divergent jets. Embodiments of the flow control member for use with diaphragms having partial blind apertures with side entries for the water flow are described with reference to Figs. 2-4, not shown.
Patent GB-493019-A (GB)
Title: An improved casing for electric pocket lamps
IPC: F21L4/00
Filed: 1938-03-09
Abstract: 493,019. Electric-battery lamps. ELEKTROTECHNISCHE FABRIK SCHMIDT & CO., GES. March 9, 1938, No. 7366. Convention date, March 10, 1936. [Class 39 (ii)] A battery-lamp casing 1 has a side wall 2 hinged at 6 to the bottom of the casing and provided at its upper end with a flange arranged to extend over the upper wall of the casing when in the closed position, the flange being provided with an aperture 51 which registers with a screwthreaded bulb-socket 4 in the upper wall, so that when a bulb is screwed into the holder the flap 2 is prevented from opening. A sliding switch - member 7 operated by a button 8 co-operates with a terminal strip on the battery (not shown).
Patent GB-499922-A (GB)
Title: Improvements in or relating to automatic frequency control in electric carrier signalling systems
IPC: H03L7/06
Filed: 1938-03-09
Abstract: 499,922. Automatic control systems. SIEMENS & HALSKE AKT.-GES. March 9, 1938, No. 7393. Convention date, Oct. 21, 1937. Drawings to Specification. [Class 38 (iv)] Oscillation frequency.-In carrier wave signalling systems wherein the subsidiary generators of transmitters and/or receivers are synchronized with a single master generator by frequency balance means' to which master and carrier oscillations are applied, and wherein frequency or phase difference effects regulation of the subsidiary generator, a frequency balance comprises two inductive windings producing fields at right-angles to which master and carrier oscillations are respectively applied, the resultant rotating field occurring when synchronism is disturbed actuating regulating means to restore synchronism. The collapse of the master oscillation will then leave the subsidiary generator oscillating in accordance with the last adjustment made. An armature lying in the field may be adapted by rotation selectively to energize opposite excitations of a motor adjusting a condenser in the circuit of a subsidiary generator, the armature being spring loaded to return to a mean position when not subject to torque from the field windings. The respective frequencies may be reduced before comparison by a local common generator of a frequency preferably 100 cycles. above the carrier frequency, the lower side bands being fed to the relay windings. Instead of a relay an induction motor may be used directly actuating the regulating means.
Patent GB-1061272-A (GB)
Title: Extruder for expelling modelling compound through dies
IPC: B29C48/475
Filed: 1964-02-21
Abstract: 1,061,272. Toy extrusion apparatus. R. BOGGILO, and W. L. DALE. Feb. 21, 1964 [Feb. 28, 1963], No. 7423/64. Heading B5A. In a toy extruder, modelling compound is forced out from the aperture 14 in the end of an arcuate chamber 12 by means of a piston 11 integral with a hand lever 10 pivoted at the centre of curvature of the chamber.
Patent GB-723626-A (GB)
Title: Condensation products of dialdehydes and nitrogenous compounds
Inventor: HOLLIS CHARLES EDWARD
IPC: C08G12/10
Filed: 1952-03-17
Abstract: Resins useful as surface coatings are prepared by reacting dialdehydes having at least 5 carbon atoms with a dihydrazide, e.g. sebacic or adipic dihydrazide, a diamide of a dicarboxylic acid or urea.  The condensation is preferably effected in the absence of a catalyst.  A solvent, e.g. an alcohol or ether, may be employed. Equimolecular proportions of the reactants are preferably employed. Specified dialdehydes are cyclohexane dialdehydes, succindialdehyde, glutardialdehyde, 2-methoxymethyl- and 2-ethoxymethyl-2 : 4-dimethylpentane-1 : 5 dials.  In examples: (1) equimolar proportions of 2-methoxymethyl-2 : 4-dimethyl-pentane-1 : 5 dial and sebacic dihydrazide were reacted at 50-170 DEG  C. in an atmosphere of nitrogen to give a viscous resin which on cooling became a clear yellow glass; (2) 69 parts urea and 172 parts 2-methoxymethyl-2 : 4-dimethylpentane-1 : 5 dial were reacted at about 110 DEG  C. in an atmosphere of nitrogen to give a clear, hard, brittle resin.  In both examples water was evolved.  Specification 706,176 is referred to. The Provisional Specification describes the reaction of dialdehydes with polyamines, in particular of 2-methoxymethyl - 2,4 - dimethylpentane - 1,5 dial with hexamethylene diamine and p-phenylene diamine.
Patent GB-572129-A (GB)
Title: Improvements in or relating to portable projection screens
IPC: G03B21/58
Filed: 1944-04-21
Abstract: 572,129. Portable projection screens. STABLEFORD, J. L. April 21, 1944, No. 7464. Addition to 562,023. [Class 97 (i)] A portable projection screen of the box type is fitted with a stabilizing member 12 movably attached to the box, as by a rivet 14, so that it may occupy the stabilizing position, shown in Fig. 1, in which it projects through slots 16 and 17, or be housed within the box, when not required, as shown in Fig. 3. In a modification, the stabilizing member may consist of two parts, movable on the same pivot or on separate pivots. In a further modification, the stabilizing members are slidable into and from the operative position. Specifications 543,105 and 562,013 also are referred to.
Patent GB-452272-A (GB)
Title: Improvements in or relating to methods of preparing higher lactones containing at least 11 carbon atoms in the lactone ring
Filed: 1935-09-30
Abstract: Lactones are prepared by the process described in the parent Specification, using as starting materials the mono-ethers derived from 11-oxyundecane acid-1 and ethyleneglycol, trimethyleneglycol and 1 : 3 - butyleneglycol.  According to the examples, the mono-ethers are converted into their lactones by slowly adding them to a boiling dilute solution of benzene-sulphonic acid in benzene, or by adding benzene-sulphonic acid slowly to a boiling dilute solution of the mono-ether in benzene, and distilling off the benzene in vacuo.
Patent GB-758252-A (GB)
Title: Improvements relating to electric busbar systems
Inventor: AMER DONALD FOSTER
IPC: H02B1/24
Filed: 1953-03-20
Abstract: 758,252. Arc-rupturing in switches. REYROLLE & CO., Ltd., A. March 15, 1954 [March 20, 1953], No. 7804/53. Class 38(5) In a polyphase bus - bar system B<SP>1</SP>, B<SP>2</SP>, B<SP>3</SP>, a single set of resistors R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> is connected to the bus-bars on operation of any one of the circuit-breakers (as L, M, N) connected to the bars. Connection is effected by closure of a switch G<SP>1</SP>, G<SP>2</SP>, G<SP>3</SP> which reopens automatically at the conclusion of the operation, or (Fig. 2, not shown) the transient voltage set up after arc-extinction may be arranged to breakdown a spark-discharge gap which has been opened to atmosphere by operation of a valve on tripping of a breaker. The resistor may be tranformer-connected to the bus-bars and where bus-zone protection is provided, the resistors may be included in it, or the protection may be temporarily immobilized while they are in circuit.
Patent GB-1482892-A (GB)
Title: Phototube having electron collection efficiency
IPC: H01J43/18
Filed: 1976-02-27
Abstract: 1482892 Photomultipliers RCA CORPORATION 27 Feb 1976 [28 Feb 1975] 07884/76 Heading H1D A phototube comprises a photocathode 16, a secondary emissive electrode d 1  on which the photoelectrons impinge, and an electron lens system causing the electron trajectories to intersect at at least a first region 54 and a final region 56 separated by a region of reduced concentration the final region 56 including substantially more trajectories than region 54, and electrode d 1  being located substantially in a transverse plane intersecting the final region. The electrons may be emitted from a flat photocathode and/or the interior side walls, e.g. reflective photocathode 20 with Al coating 18 having a preferably cylindrical interior surface. Annular focusing electrodes 22, 24 with mesh or grid 39 are secured to electron multiplier 44 by ceramic spacers 40. There may alternatively be one or more than two field forming electrodes. A uniform light signal may be scanned across or focused over all the input surface. Electron acceleration may be by electrostatic and/or magnetic fields. The dynodes may be squirrel cage type or elongated staggered series as shown in U.S.A. Specification 2,908,840. Dimensions are given.
Patent GB-886356-A (GB)
Title: Funis clamp
IPC: A61B17/122
Filed: 1959-03-06
Abstract: 886,356. Surgical clamps. KARIHER, D. H., and SMITH, T. W. March 6, 1959 [March 15, 1958], No. 7914/59. Class 81 (2). [Also in Group XXV] A surgical clamp comprises a pair of synthetic plastic arms 8, 9 joined together at one end, the free end of one arm carrying an oval button 23 and the free end of the other arm having an oval aperture 17 of helical configuration for reception of the button, the longitudinal axis of the aperture at the entrance being angularly disposed to the longitudinal axis of the aperture at the exit. Each arm has a finger piece 12, 13 and teeth along its inner surface. The clamp is made of elastic material so that a lateral projection 22 which carries the button rotates to permit the button to pass through the aperture.
Patent GB-315349-A (GB)
Title: Improvements relating to apparatus for producing ozone
IPC: C01B13/11
Filed: 1929-03-11
Abstract: 315,349. Soc. Anon. l'Agence MÚtallurgique. July 12, 1928, [Convention date]. Gases, treating electrically.- A condenser for apparatus for producing ozone comprises plates a<1>, a<2> of wire gauze pressed against a thin sheet of dielectric b by insulating plates c', c<2> provided with projections d separated by spaces f in which the air can circulate, thus preventing rise of temperature. The whole is held together by a spring clip e.
Patent GB-398264-A (GB)
Title: Improvements in or relating to absorption refrigerating apparatus
IPC: F25B17/00
Filed: 1932-03-17
Abstract: 398,264. Refrigerating. ELECTROLUX, Ltd., 153, Regent Street, London.- (Assignees of Knight, D. B.; 209, Lincoln Place, Brooklyn, New York, U.S.A.) March 17, 1932, No. 7981. Convention date, March 18, 1931. Drawings to Specification. [Class 29.] Absorption systems.-The generator-absorber and the condenser of a reversing system are cooled alternately by one and the same closedcycle condensing-evaporating heat transfer system, the elements of which are continuously in open gas and liquid communication. The medium within the heat transfer system moves into and out of heat exchange with the condenser and the generator-absorber as a consequence of the change of temperature of the rectifier brought about by the reversal of the refrigerating cycle. The invention is described as applied to the refrigerating system set forth in Specification 386,475, wherein also the operation of the heat transfer system is described. The Specification as open to inspection under Sect. 91 comprises also the application of the heat transfer system to cooling purposes generally. This subject-matter does not appear in the Specification as accepted.
Patent GB-225111-A (GB)
Title: Improvements in or relating to apparatus for swelling cereals
IPC: A23L1/18
Filed: 1924-03-28
Abstract: 225,111. Suzuki, C. March 28, 1924. Treatment by steaming. -- An apparatus for steaming and swelling grain comprises a chamber 2 into which steam is injected and to which the grain is supplied by means of an auomatic feeding-device after passing through a preheating chamber 5. The chamber 2 is steam-jacketed and has a steam inlet 11. A rotary pocketed drum 6 feeds the grain into the chamber, whence it is discharged through the cock 10. The steam escapes partly by the cock 10 and partly between superposed annular plates 14 to a drain-cock 15.
Patent GB-1508573-A (GB)
Title: Road vehicle headlamp levelling system
IPC: B60Q1/115
Filed: 1975-04-01
Abstract: 1508573 Automatic control LUCAS ELECTRICAL Ltd 1 April 1975 [22 Feb 1974] 8109/74 Heading G3N [Also in Divisions F3 and F4]  In a system for automatically tilting vehicle head-lamps 15 about a horizontal axis in response to changes in attitude of a suspended part of the vehicle, the tilting is effected by a reversible electric motor 19 controlled by a control circuit to which the electrical outputs of at least two transducers are fed, one output being representative of the angular position of the head-lamps, the other the angular position of the suspended part of the vehicle relative to the road and being derived from inductors 13, 14 variable by movement of the front and rear suspensions respectively, said inductors being connected in series but varying in opposite senses to compensate for movements not involving changes in attitude. Head-lamps 15 are mounted on a common shaft to which crank 16 is fixed and output arm 17 of actuator 18 which tilts the head-lamps under the effect of motor 19 also indicates their angular position to provide a corresponding output from potentiometer 20, or from an inductive transducer Fig. 4 (not shown). The control system is shown schematically in Fig. 2, the circuitry being detailed in Figs. 3a, 3b (not shown).